Billionaire investor Tom Gores recently closed on a newly constructed spec home in the Holmby Hills neighborhood of Los Angeles. Gores, Chairman and CEO at Platinum Equity and owner of the Detroit Pistons, completed one of the trickier real estate deals to take hold of the home, exchanging several Los Angeles properties for the mega-mansion in a deal worth $100 million. Gores will retain a profit interest on the properties he’s giving up, which include 3.2 acres of undeveloped land in Bel-Air.

That property, which was previously owned by Technicolor Motion Picture Co. founder Herbert Kalmus, had been listed for sale with a price of $47.9 million not too long ago.

Gores’ new two-acre lot, which formerly housed “Mon Rêve,” the long-time home of Barbra Streisand, had been listed as high as $150 million back in April. It houses a 30,000-square-foot contemporary featuring 10 bedrooms and 20 baths across the main residence and guest houses.

Living spaces include a theater with a valet entrance, a lounge, a wine room, a spa with an indoor waterfall and a pool, a hair salon and massage and steam rooms. The 5,300-square-foot master suite also includes access to a heated patio.

Elsewhere on the property are a lighted hiking trail and two infinity swimming pools.

Gores completed the purchase of a 100% stake in the Detroit Pistons last year. The 52-year-old business mogul has an estimated net worth of $3.3 billion.